Officials estimate it will cost about $360,000 to repair the Turner Pond Dam, which the state last spring declared in poor condition with a “significant hazard potential.” The state Department of Conservation and Recreation gave the town until Oct. 30, 2014, to make the dam safe. Town Engineer Margaret Walker said Walpole’s Oct. 21 Town Meeting will be asked to approve the expenditure. Mill Pond Road runs along the top of the earthen dam and could wash out if the dam fails, she said. Most of the work required involves removing trees and roots from around the structure, she said. Turners Pond, which had been used historically for ice, now is used for recreation — primarily fishing and ice skating.